Linear multi-domain electrocardiogram

A noninvasive electrocardiography (ECG) system for detecting a multi-domain ECG waveform that includes two or more different time domain signals that each represent a different frequency domain signal, comprising:

• two or more electrodes adapted to be located near a beating heart of a patient and attached to the skin of the patient that receive electrical impulses from the beating heart;
• a detector that detects the electrical impulses from at least one pair of electrodes of the two or more electrodes and converts the electrical impulses to an ECG waveform for each heartbeat of the beating heart;
• a signal processor that receives the ECG waveform for at least one heartbeat from the detector, converts the ECG waveform to a frequency domain waveform, separates the frequency domain waveform into two or more different frequency domain waveforms using two or more different bandpass filters, and converts the two or more different frequency domain waveforms into two or more different time domain waveforms;
• and
• a display device that displays the two or more different time domain waveforms in the same time domain plot as a multi-domain ECG waveform for the at least one heartbeat of the beating heart.